Razors



Sept. 6, 1955 1 R. CASE 2,716,811

RAzoRs Filed sept. 2, 1954 INVENTOR. LARUE R. CASE A 71' ORNE KS United States Patent 0 RAZORS Larue R. Case, Pasadena, Calif., assignor to Case Company, Pasadena, Calif., a partnership Application September 2, 1954, Serial No. 453,796 3 Claims. (Cl. 30--47) tofore, disposable razors have utilized the match-book cover to fix the position of the blade with respect to the handle. However, the materials of which the cover is made, usually paper or cardboard, are not sufficiently rigid to hold the blade in a fixed position with respect to the handle, thereby preventing safe use of the razor.

ln contrast, the razor of my invention provides positive positioning of the blade in the shaving position. This is accomplished by attaching a rigid plastic razor body to the match-book cover and hinging the razor head which carries the blade to the razor body. This form of a disposable razor provides new and useful results heretofore unattainable in a disposable razor and insures greater safety in the use of such a razor.

Accordingly, my invention comprises a cover of relatively stiif sheet material with a transverse fold. A razor body is fastened across one end of the cover and a razor head carrying a razor blade is hinged to the razor body along a line generally parallel to the transverse fold. Stopping means are provided to prevent the razor head from swinging through an angle of more than 90 degrees with respect to the razor body. The cover is adapted for closure over the razor head when the razor head is swung in against the razor body.

In one embodiment of the razor of my invention, a cover is provided which may be folded to form a channelsection handle for the razor, a T-shaped razor body is attached to the cover, a razor head is hinged to the cross-bar of the razor body, a guide bar is integrally formed as a part of the razor head, a razor blade is attached to the razor head so that the cutting edge is parallel to the guide bar at a given distance from the surface of the guide bar, a conduit is provided in the razor head to prevent clogging of the razor, and one or more detents are integrally formed with the razor head to lock the razor head in a given position for shaving. These and other aspects of my invention will be more clearly understood by reference to the drawings, in which:

Fig. 1 is a side elevation of a preferred form of the razor in a match-book cover;

Fig. 2 is a front view showing the match-book cover of the razor of Fig. 1 in extended position;

Fig. 3 is a front elevation of a preferred form of the razor of Fig. 1 with the book folded for use as a handle and showing the razor head in the shaving position;

Fig. 4 is an enlarged sectional elevation showing the match-book cover of the razor of Fig. 1 taken along the line 4--4 of Fig. 3; and

2,715,83 l Patented Sept. 6, 1955 ICC Fig. 5 is a bottom view of the razor head.

Turning to the drawings in detail, in which the same reference numerals are used for like parts throughout the several views, the match-book cover 10 may be formed from a rectangular piece of cardboard coated with plastic or similar material for water-proofing. The cover yis scored along two parallel lines 10A, 10B, running the length of the piece of cardboard and is scored along two parallel lines 10C, 10D, running the width of the cardboard. A razor body 11 may comprise a at T- shaped piece of plastic having a cross-bar 14 and a shank which is less than one-half the length of the match-book cover 10. The shank and the center section of the crossbar are fastened to the strip in the center of the cover between the parallel scored lines by gluing or the like. The razor head 12 to which a blade 13 is attached is hinged to the razor body 11 along an axis adjacent the top of the cross-bar 14. On one end of the cross-bar 14 a hinge loop 15 is integrally formed which is adapted to secure a hinge pin 17 extending from one end of the razor head 12. At the other end of the cross-bar another hinge loop 16 is integrally formed, having a given inner diameter and an opening along the length of the loop which is slightly less than the inner diameter of the loop. The open hinge loop 16 is adapted to receive a hinge pin 18 extending from the other end of the razor head 12.

The head is mounted on the cross-bar 14 by sliding the pin 17 into the closed loop 15 on the cross-bar and thereafter pressing the pin 18 into the open loop 16 on the other end of the cross-bar. The razor blade may be fastened to the face of the razor head 12 by any suitable means such as gluing. A guide bar 19 is integrally formed with the razor head along with the guide bar arms 20, '21. The guide bar 19 is integrally formed with the razor head along with the guide bar arms 20, 21. The guide bar arms 20, 21 are spaced so that their outer edges are approximately even with the ends of the razor blade. The upper surfaces of the arms are flush with the face of the razor head to which the blade is attached. Thus, the arms provide additional support for the blade. The position of the blade with respect to the guide bar 19 is fixed by means of a shoulder 23 in the razor head. A lip 22 is formed along the outer edge of the guide bar 19. The lip 22 and a portion of the guide bar extend beyond the cutting edge of the blade. The guide bar 19 serves to establish the proper angle between the skin surface being shaved and the cutting edge of the razor blade 13. Beneath the blade, the guide bar is formed to provide a conduit which connects with a slot 24 in the razor head to prevent clogging of the razor.

Two wedge-shaped detents 25, 26 are integrally formed on the side of the razor head opposite the blade. These detents serve to hold the razor head in correct position for shaving and are constructed so that the razor head may be swung from a flat position along the razor body into the shaving position. As the razor head is being swung from the at position, the inclined surfaces of the detents slide over the top edge of the cross-bar until the at surface of the cross-bar engages the near-vertical surface of the detent, at which point the detents hold the razor head 12 in fixed position relative to the razor body. The surface of the top edge of the cross-bar is formed at an angle to the at surface of the shank of the razor body to form a seat between the top of the cross-bar and the razor head when the razor head is held at its proper angle for shaving with respect to the razor body.

In the form in which the razor is distributed, it resembles a match-book. The portion of the cover which folds over the razor is held in place by a gummed tab 28 which may be pulled oft to open the cover. As heretofore set forth, the cover encloses the razor body with the razor head folded at against the razor body. When4 the cover is opened, the cover may be folded along the scored lines to provide a suitable handle, and the razor head may be swung and locked into the shaving position. The cover also encloses a plastic envelope 27 containing shaving cream. The envelope is held within the cover by means of a strip of gummed tape 29. Thus, all necessary materials for shaving are provided. v

I claim:

l. In a disposable razor, the combination comprising a cover which is adapted to be folded to form a channelsection handle for the razor, a T-shaped razor body having a cross-bar with a flat surface and a shank which is attached to the cover, said cross-bar having a topedge lying in a plane which is inclined at a given angle from a plane normal to the at surface of the cross-bar, a razor head hinged to the cross-bar of the razor body, a guide bar integrally formed as part of the razor head, a razor blade having a cutting edge, said razor blade being attached to the razor head in a position in which the cutting edge is parallel to the guide bar at a given distance from the surface of the guide bar, said guide bar being formed to provide a conduit in the razor head to prevent t clogging of the razor, at least one detent integrally formed with the razor head to lock the razor head at an angle so that the razor blade is at a given angle with respect to the shank, said angle being equal to the angle between the plane of the top edge of the cross-bar and the at surface of the cross-bar.

2, In a disposable razor, the combination comprising a cover of relatively stiff sheet material with a transverse fold, scoring on the cover so that the cover may be folded to form a channel-section handle for the razor, a T- shaped razor body having a cross-bar and a shank which is attached to the cover, a razor head, means for hinging the razor head to the cross-bar, said hinging means comprising two hinge pins extending from the ends of the razor head which establish the axis of rotation of the razor head, a hinge loop extending from one end of the cross-bar which is adapted to receive one of the hinge pins, an open hinge loop extending from the other end of the cross-bar which is adapted to receive the other hinge pin, one hinge pin being inserted in the hinge loop along the axis of rotation of the razor head and the other hinge pin being inserted in the open hinge loop transversely to the axis of rotation of the razor head, a guide bar integrally formed as part of the razor head, a razor blade having a cutting edge, said razor blade being attached to the razor head in a position in which the cutting edge is parallel to the guide bar at a given distance from the surface of the guide bar, said guide bar being formed to provide a conduit in the razor head to prevent clogging of the razor, at least one dctent integrally formed with the razor head to lock the razor head in a given position for shaving.

3. In a disposable razor, the combination comprising a cover which is adapted to be folded to form a channelsection handle for the razor, a T-shaped razor body having a cross-bar with a flat surface and a shank which is attached to the cover, said cross-bar having a top edge, a razor head hinged to the cross-bar of the razor body, a guide bar integrally formed as part of the razor head, a razor blade having a cutting edge, said razor blade being attached to the razor head so that the cutting edge is parallel to the guide bar at a given distance from the surface of the guide bar, said guide bar being adapted to provide a conduit in the razor head to prevent clogging of the razor, and at least one detent integrally formed with the razor head to lock the razor head against the top edge of the cross-bar at an angle so that the razor body is at a given angle with respect to the shank.

References Cited in the tile of this patent 2,694,857 Koval Nov. 23, 1954 

